Trunk-lock.



' TRUNK LOCK.

(Application filed Aug. 28, 1899.)

- (Nn Model.)

UNITED STATES PATENT OFFICE.

CHARLES G. JOHNSON, OF WEST SUPERIOR, `WISCONSIN, ASSIGNOR OF ONE-- HALF 'lO ALFRED PETTERSON, OF SAME PLACE.

TRUNK-LOCK.

SPECIFICATION forming part ot' Letters'Patent No. 653,141, dated July 3, 1900.

npplication filed August Z8, 1899. Serial No. 728,805. No model.l

, Tol all whom it may concer/t.-

Be it known that I, CnAELEs G. J oHNsoN, a citizen of the United States, residing at West Superior, in the county of Douglas and State of WVisconsin, have invented certain new and useful Improvements in Trunk- Locks; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same, reference being had, to the aecompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

My invention relates to improvements in trunk-locks; and the object of the invention is to provide a cheap, strong, and. neat trunklock which works en thc principle of a permutation-lock, so that it needs no key for its IOperation. y This object I attain by the novel construction and arrangement of parts illuscentral vertical section through Fig. 1.

trated in the accompanying drawings, in which- Figure 1 is a front elevation 'of a portion of a trunk having my new lock applied to it. Fig. 2 is a back side view of the lock removed from the trunk. Fig. 3 is a substantially- Figs. 4 and 5 are detail side views of the two dials by which the lock is opened and closed.

Referring to the various parts in the drawings by reference-numerals, 1 is the body, and 2 the cover, of a trunk tolwhich my new lock is secured by the rivets 3, and consists of the lower and upper plates 4 and 5, secured,lre spectively, on the trunk and cover.

6 is a space in the upper-plate to lighten it or save material. f l

7 are guides on the upper plate, adapted to guide in the pockets 8 in the lower plate '/1, and thus bring the upper and lower plate in line and resist horizontal pressure againstthe cover. The pockets I preferably make open atthe inner side, so hat in 'casting the plate no core will be needed.

by the spring 13. The locking-arm 12 is pro vided on its inner side with the hook 14, which when the tru nk is locked enters through the aperture 15 in the lower plate and through 55 the slits or notches 16 and 17 in the edges of the two locking-disks 18 and 19, so that when one or both of the disks are turned with their notches awayf rom the hook the latter is held in its locked position by the solid edge off the 6o disks and can only be unlocked again by turning the disks till the two notches 16 and 17 register with the hook. The disk 1.8 is slightly sunk into the inner side of the plate 4'and is made hollow at its back side, so that 65 it houses the disk 1S), which is turned by .the numbered, graduated, and at its edge knurled dial 20, located in thelgevel-edged cavity 21 in the outerside of the lower plate 4 and connectedwith said disk by the tube 22, having the four-cornered end. 22X, entering a square hole in the disk. 23 is asmaller graduated and numbered dial provided with a central stem 24, which extends through the sleeve or tube 22 and ts with its square end in the disk 19, in which it is retained by the pin 25. By means ofthe square holes in the disks they may be turned, each of them, in four dierent directions, and therebychang'e to eight diderent combinations.

The dials may have any desired number of the graduation-marks 27 and 28, and those may be marked with numerals or letters, or both. f l In operation the predetermined marks on both dials which come in radial line with the notches 16 and 17 in the disks are` both turned toward the mark 26 on the arm112. This brings the notches in linewith the hook 14, so thatthe arm 12 may be either closed or opened. In the latter actthe spring' 13 assists. rlhe beveling 214 is to admit the iingers to get hold of the larger dial 20. The arm 12, it will be seen, folds intoa groove'or seat 26X in the lower plate 4 and is provided with the shoulders 29, which engage below the shoulders 30 of the plate. v

Having thus described my invention, what -I claim as new, and desire to secure by Letters Patent, isroo 1. A trunk-lock com prlsing in combination,

anupper and a lower plate securable', respec- 'a notch in'ts edge for the hook to pass throughand engage the rear of the disks when they are turned away from the, opening and locking position; the front lockingdisk having an annular flange projecting rearwardly flush with the rear side of the rear disk, substantially as set forth.

A2. A trunk-lock comprising in combination an upper and a lower plate securable the `former to the cover and the latter to the body of a trunk, the upper plate having a pivoted arm with a single locking-hook adapted to enter the lock from the front, the lower plate having an aperture for said hook, and a plurality of locking-disks arranged concentrically at the rear side of the plate, and provided with notches ,in their edges for the lockinghook to pass through and engage the rear of the disks, said disks having-shafts or sleeves graduated operating-dials 4secured on them i in front of the plate; said plates having the guides 7 and the pockets 8 adapted to engage each other; and a suitable mark on the lower plate or on the locking-arm to indicate the `unlocking position of the dials according to predeterminatiou, substantially as set forth.

3. In a trunk-lock, the combination with` two lock frame-plates adapted to'be secured one tothe trunk proper, andthe other to the trunk-cover, of a pivoted locking-arm suspended from the upper plate and having the angular side shoulders 29, and the two'plates being grooved to receive the arm flush with their outer surface, and the lower plate having the angular shoulders 30 engaging the shoulders29, and means for locking said arm in said groove, substantially as and for the purpose set forth.

with two concentric locking-disks, both having a notch in their edge, of a single lockinghook adapted to engage the rear of the disks and to pass through the notches in a direction parallel to the axis of the disks when locking and unlocking take place; said disks being one smaller than the other and sunk' into a cylindrical cavity in the side of the larger disk so that'the two disks present' an even -surfaceto the hook or ward, and suitable marked dials for turning the disks, substantially as set forth.

. SO 4. In a permutation-lock, the combination In testimony whereof I afix my signature .in presence of two witnesses. projecting forward through the plate and CHARLES Gr. JOHNSON.

Vitnesses:

ALFRED JOHNSON, FRANK SwANsoN. 

